Wireless speaker



FIG. 1 is a perspective view of a wireless speaker showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines shown in the drawings are for the purpose of illustrating portions of the wireless speaker that form no part of the claimed design. 

CLAIM The ornamental design for a wireless speaker, as shown and described. 